Marek created SOLR-13197: ---------------------------- Summary: NullPointerException in org/apache/solr/handler/component/StatsField.java[251] Key: SOLR-13197 URL: https://issues.apache.org/jira/browse/SOLR-13197 Project: Solr Issue Type: Bug Security Level: Public (Default Security Level. Issues are Public) Affects Versions: master (9.0) Environment: h1. Steps to reproduce
* Use a Linux machine. * Build commit {{ea2c8ba}} of Solr as described in the section below. * Build the films collection as described below. * Start the server using the command {{./bin/solr start -f -p 8983 -s /tmp/home}} * Request the URL given in the bug description. h1. Compiling the server {noformat} git clone https://github.com/apache/lucene-solr cd lucene-solr git checkout ea2c8ba ant compile cd solr ant server {noformat} h1. Building the collection We followed [Exercise 2|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html#exercise-2] from the [Solr Tutorial|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html]. The attached file ({{home.zip}}) gives the contents of folder {{/tmp/home}} that you will obtain by following the steps below: {noformat} mkdir -p /tmp/home echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' > /tmp/home/solr.xml {noformat} In one terminal start a Solr instance in foreground: {noformat} ./bin/solr start -f -p 8983 -s /tmp/home {noformat} In another terminal, create a collection of movies, with no shards and no replication, and initialize it: {noformat} bin/solr create -c films curl -X POST -H 'Content-type:application/json' --data-binary '{"add-field": {"name":"name", "type":"text_general", "multiValued":false, "stored":true}}' http://localhost:8983/solr/films/schema curl -X POST -H 'Content-type:application/json' --data-binary '{"add-copy-field" : {"source":"*","dest":"_text_"}}' http://localhost:8983/solr/films/schema ./bin/post -c films example/films/films.json {noformat} Reporter: Marek Attachments: home.zip Requesting the following URL causes Solr to return an HTTP 500 error response: {noformat} http://localhost:8983/solr/films/select?stats=true&stats.field={!cardinalit} {noformat} The error response seems to be caused by the following uncaught exception: {noformat} ERROR (qtp689401025-17) [ x:films] o.a.s.s.HttpSolrCall null:java.lang.NullPointerException at org.apache.solr.handler.component.StatsField.<init>(StatsField.java:251) at org.apache.solr.handler.component.StatsInfo.<init>(StatsComponent.java:194) at org.apache.solr.handler.component.StatsComponent.prepare(StatsComponent.java:47) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:272) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2559) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:711) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:516) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:394) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:340) [...] {noformat} There is called method 'createParser' on local variable 'qplug' which is set to null on the previous line (i.e. 250). The value null is set to the local variable 'qplug', because of failure in finding the sting "cardinalit" in the field 'registry' of the class org.apache.solr.core.PluginBag (at line org/apache/solr/core/PluginBag.java[167]). We found this bug using [Diffblue Microservices Testing|https://www.diffblue.com/labs/?utm_source=solr-br]. Find more information on this [fuzz testing campaign|https://www.diffblue.com/blog/2018/12/19/diffblue-microservice-testing-a-sneak-peek-at-our-early-product-and-results?utm_source=solr-br]. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org